nano-agentguard（纳米特工卫士）

AgentGuard - Agent Identity & Permission Guardian

Overview

AgentGuard is a trust middleware for Phase 1 hybrid authentication:

• Credential Vault: Encrypted storage for API keys and OAuth tokens
• Permission Scopes: Define what operations need human approval
• Human Gate: Push confirmation requests for high-risk operations
• Audit Trail: Cryptographically signed operation logs
• Agent Registry: Track agents with credentials and permissions

Installation

# Install globally
npm install -g agentguard

# Or use as OpenClaw skill
cp -r . ~/.openclaw/skills/agentguard

Quick Start

# Initialize vault
agentguard init

# Register an agent
agentguard register my-agent --owner "user@example.com"

# Store a credential
agentguard vault store my-agent OPENAI_API_KEY sk-xxx

# Define permission scope
agentguard scope set my-agent --level read --dangerous require-approval

# List agents
agentguard list

# Audit log
agentguard audit my-agent --last 24h

Permission Levels

Dangerous Operations (Require Human Approval)

• Send messages/emails
• Financial transactions
• Delete data
• Modify system config
• Access sensitive credentials
• External API calls (configurable)

Human Gate Integration

When an agent attempts a dangerous operation:

1. AgentGuard blocks the operation
2. Pushes notification to owner (Feishu/Telegram/Email)
3. Owner approves/denies with biometric confirmation
4. If approved, operation proceeds with short-lived token
5. All logged with cryptographic signature

Configuration

~/.agentguard/config.json:

{
  "vault": {
    "encryption": "aes-256-gcm",
    "keyDerivation": "pbkdf2"
  },
  "humanGate": {
    "timeout": 300,
    "channels": ["feishu", "telegram"],
    "biometric": true
  },
  "audit": {
    "retention": "30d",
    "signLogs": true
  }
}

API Usage (for skills)

const agentguard = require('agentguard');

// Check permission
const allowed = await agentguard.check('my-agent', 'send_email');
if (!allowed) {
  // Request human approval
  const approval = await agentguard.requestApproval({
    agent: 'my-agent',
    action: 'send_email',
    details: { to: 'user@example.com', subject: 'Test' }
  });
}

// Get credential
const apiKey = await agentguard.getCredential('my-agent', 'OPENAI_API_KEY');

// Log action
await agentguard.audit('my-agent', 'api_call', { endpoint: '/completions' });

Security Model

1. Vault Encryption: AES-256-GCM with key derived from master password
2. Credential Isolation: Each agent has separate encrypted container
3. Audit Integrity: SHA-256 hash chain for tamper detection
4. Human Gate: Out-of-band confirmation via trusted channel
5. Token Expiry: Short-lived tokens (default 5 min)

Files

• ~/.agentguard/ - Data directory
• ~/.agentguard/vault/ - Encrypted credentials
• ~/.agentguard/registry.json - Agent registry
• ~/.agentguard/audit/ - Audit logs
• ~/.agentguard/config.json - Configuration

OpenClaw Integration

AgentGuard integrates with OpenClaw as a skill:

1. Add to ~/.openclaw/skills/agentguard/
2. Configure in workspace AGENTS.md:

   ## AgentGuard
   All external API calls require AgentGuard permission check.
   Dangerous operations require human approval.

1. Use in other skills:

   const guard = require('agentguard');
   await guard.checkOrApprove(agentId, operation, details);

Roadmap

• [ ] Phase 1: CLI + Vault + Permission Scopes
• [ ] Phase 2: Human Gate (Feishu/Telegram integration)
• [ ] Phase 3: Audit Trail + Export
• [ ] Phase 4: OAuth2 Token Auto-refresh
• [ ] Phase 5: Multi-tenant Support
• [ ] Phase 6: DID Preparation (future Phase 2)

*Building trust infrastructure for the Agentic Era.*